Penny Scale--What is it worth?

[mznb1u]

We had a scale exactly like this one in my dad's drugstore when I was a kid.  I used to get to roll up the pennies every year when we emptied it out.  Usually about $70 per year.  Of course, I had to separate out all of the wheat pennies for my dad because he was a coin collector!

I looked at this one today and it is working but needs a few adjustments.  It is also missing the upper panel on the back but it looks like one could be fabricated without too much effort.  The coin box door lock would also have to be replaced as the keys are missing.  That should be an easy fix as well.

I want this for nostalgia reasons and it would look great next to my soda machines?  But, I won't want to overpay.  Pictures aren't the greatest but it was my cell phone.

Any input would be greatly appreciated!

Thanks!

Tim